flywheel/timing

[clutch dog]

I have a 115 mariner 1985 if i take the flywheel off to but a new stator on do i have to reset the timing.

 

[corm]

Re: flywheel/timing

Hi,

probably not but it would not hurt to put a light on it and check it.
Just don't change any of the linkage.

 

[sschefer]

Re: flywheel/timing

It is recommended and definitely needed if you replaced it with a non-original part like a CDI stator. When I changed my mariner 100 from a Merc to a CDI I was off quite a bit but I also changed my trigger.

It won't hurt to check it.

 

[j_martin]

Re: flywheel/timing

Stator does not affect the timing. Trigger and linkage does. If the flywheel is pulled at the spline, and not broken up by taking bolts out of the hub, timing should not be affected.

hope it helps
John

 

[sschefer]

Re: flywheel/timing

J Martin, if you change from an 8 pole to a 12 pole stator or from a Merc to a Mallory or CDI the position of the mounting screws and the size and position of the stator coils can affect the location of the trigger relative to the old stator. That will change the timing. The recommendation for checking TDC and adjusting the pointer is in every manual including the Merc shop manual. Heck, it's even recommended as part of the basic Link and Synch process.

 

[j_martin]

Re: flywheel/timing

J Martin, if you change from an 8 pole to a 12 pole stator or from a Merc to a Mallory or CDI the position of the mounting screws and the size and position of the stator coils can affect the location of the trigger relative to the old stator. That will change the timing. The recommendation for checking TDC and adjusting the pointer is in every manual including the Merc shop manual. Heck, it's even recommended as part of the basic Link and Synch process.

The trigger don't give a chit where the stator is, or how many poles are on it. It gets it's field from the ring of magnets on the hub part of the flywheel.

never hurts to check on timing, but I don't think it'll be affected.

I swap stators all the time (part of some experimenting I'm doing.) Unless I swap flywheels, the timing never moves.

just my 02
John

 

[sschefer]

Re: flywheel/timing

Hey John, I played with a couple of different triggers and stators on a 115 that I'm re-building. You're right it doesn't make any difference as long as nobody futz'd with the pointer everything else should be fine.

Rod bearing wear and loose magnets can change the timing but if they're sloppy enough to change the timing the engine has other problems that need to be addressed.

Sorry for the ping.

 

[j_martin]

Re: flywheel/timing

Hey John, I played with a couple of different triggers and stators on a 115 that I'm re-building. You're right it doesn't make any difference as long as nobody futz'd with the pointer everything else should be fine.

Rod bearing wear and loose magnets can change the timing but if they're sloppy enough to change the timing the engine has other problems that need to be addressed.

Sorry for the ping.

We're all learning together.